Classification
370 - Education
38
371 - Schools & their activities; special education
32
507 - Education, research & related topics
29
006 - Special computer methods
12
610 - Medicine & health
8
304 - Factors affecting social behavior
6
100 - Philosophy & psychology
5
000 - Computer science, information & general works
4
378 - Higher education
3
418 - Standard usage & applied linguistics
3
500 - Natural sciences & mathematics
3
700 - The arts; fine & decorative arts
3
004 - Data processing & computer science
2
005 - Computer programming, programs & data
2
296 - Judaism
2
333 - Economics of land & energy
2
372 - Elementary education
2
530 - Physics
2
540 - Chemistry & allied sciences
2
600 - Technology
2
620 - Engineering & allied operations
2
658 - General management
2
745 - Decorative arts
2
025 - Library operations
1
153 - Mental processes & intelligence
1
200 - Religion
1
300 - Social sciences
1
306 - Culture & institutions
1
330 - Economics
1
338 - Production
1
363 - Other social problems & services
1
374 - Adult education
1
381 - Commerce
1
384 - Communications; telecommunication
1
400 - Language
1
510 - Mathematics
1
621 - Applied physics
1
629 - Other branches of engineering
1
630 - Agriculture & related technologies
1
720 - Architecture
1
900 - History & geography
1
910 - Geography & travel
1